Improvement in apparatus for aerating beer-barrels



JOSEPH METZGER..

Improvement in Apparatus for AeratingBeer-Barrelsi. No; 114,839 Patent.edMay16,1871.

dim-ted $111M Letters Patent No. 114,839, dated May 16, 1871.

IMPROVEMENT IN APPARATUS FOR AERATING BEER-BARRELS';

The Schedule referred to in these Letters Patent and making part of the same.

4 To all persons to these presents may come Beit known that I, JOSEPH METZGER, of East Cambridge, of the county of Middlesex'and -State of Massachusetts, have invented a new and useful Apparatus 'for Aerating Beer-Barrels; and do herebydecla re the same to be fully described in the following specification and represented in the accompanying drawing, of which- Figure 1 is a front elevation of a barrel with such apparatus applied to it. t

Figure 2 is a longitudinal section of the apparatus. I have found that lager-beer will be hindered from fermenting or turning acid by keeping it under pressure of condensed air, such being also advantageous in other respects.

I have, therefore, inserted a portable apparatus for stopping the bung-hole of a beer-barrel, and for charging such barrel with air.

The said apparatus consists-- First, of a hung or stopper, A. to be driven'or fixed in the bung-hole.

Second, of an elastic-bulb air-pump, B, a flexile eduqtion-pipe, G, and a stop-cock, D, the latter being inserted in the bung, and such being made with a passage, a, to lead from the stop-cock to and through the lesser end of the bung.

The elastic-bulb air-pump has valves b c in its induction and-eduotion-tubes d e, the same being so as to enable air, by the expansion of the bulb, to be drawn through the indut thereof, and to be expelled from the bulb through its educt by the contraction of the said'bulb, the air thus driven from the bulb being forced through the conduit and stop-cock (when the latter is open) and thence through the bung.

The purpose of the stop-cock is to prevent the escape of air or liquid from the cask or barrel into the long flexile tube and to the valve of the elastic bulb.

The apparatus can be readily applied to a cask by inserting the bung and driving it into the hole for its reception. a

To charge the cask with air it will only be necessary to grasp the bulbin one hand and repeatedly contract it, leaving it to expand aftereacheontraction. Y

I claim 1. The combination and arrangement of the bung and the'air-forcing and estopping apparatus, as described.

2. The combination of the barrel or cask, the bung, and the air-forcing and estopping apparatus, as described, applied together, as set forth.

' JOSEPH METZGER. Witnesses: 1

R. H. EDDY, S. N. PIPER. 

